AS-49034 Cavity-Backed Helix Antenna

This antenna is inherently circularly polarized. The materials used in the construction of the antenna were chosen to minimize the effects of the severe environments.

A resin quartz composite heat shield collar was mounted to the antenna to make the antenna flush with the heat shield of the vehicle. The mounting flange can be modified to meet the mounting requirements of a particular vehicle.

Features:

High Temperature
High Pyrotechnic Shock
Ideal TT&C Antenna
Circular Polarization
Flush Mounted

AS-49034 Antenna Specifications

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Electrical
Frequency Range	2.0 to 2.3 GHz
VSWR	2.5:1 max
Gain	+3 dBi, min
Polarization	Right-hand Circular
3 dB Beamwidth	80°, min
Axial Ratio	3 dB, max
Power Handling	2 watts average, 200 watts peak

Mechanical
Connector	TNC Female
Weight	40 oz/1.14 kg
Finish	Chemical film per Mil-C-5541

Environmental

Temperature

-14.8° F (-26° C), +249.8° F (121° C)

Altitude

Operating 21 mmHg to 8 mmHg

Humidity

MIL-STD-810D Method 507.3 Procedure I Natural

Pyrotechnic Shock

Triaxial
Freq: 50-20,000, G Level: 150-4,653

Vibration

Freq. (Hz)	g²	dB/oct	G_rms	Duration/Axis
20-300	0.04
300-450		15.9
450-1000	0.34
1000-2000		+6.1
2000-3000	1.4
			49.3	4 min/axis

This unit was designed for 2500° F for 5 minutes and 5000° F for 20 to 30 seconds.

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AS-49034 Cavity-Backed Helix Antenna